低频振动 meaning in English
low frequency vibration
low-frequency vibration
Examples
- The key points of this paper can be concluding as follows : 1 . the regulations of vibration attenuation of a subway are concluded by analyzing the situ data . in the zone near rail , the high - frequency vibration is stronger than other weight , and in the zone far away from railway , the results is opposite
主要研究内容和结果如下: 1 .对某地铁线路环境振动实测数据进行了分析,得到了振动波在土中的传播规律:地铁运营诱发振动传播过程中,近轨区域以高频振动为主,远轨区域以低频振动为主。 - But there are some defaults in conventional balance values , such as low - frequency vibration , excessive high controlling - pressure , disadvantage in stability and safety , complicated construct etc , the key matters are that the valves neither work solely nor run synchronously in two cylinders
但传统的平衡阀存在着不少缺点，如低频振动、控制压力偏高、工作平稳性和安全性较差、结构较复杂等，关键问题是在双杠变幅等回路中，既不能单独应用，又不能实现双缸同步运行。 - In engineering project , no matter the vibratory and malfunction inspection of large water wheel generate electricity set and precise machine tool , or engineering project structure vibratory analysis and mode test , earthquake forecast and geologic reconnoitering , all need to use the ulf absolute vibratory transducer to scale and analyze the signal caused when running
在工程上,无论是大型水轮发电机组、精密机床的振动监测和故障诊断,还是工程结构振动分析和模态试验、地震预报与地质勘探,均需要能够检测超低频绝对振动信号的传感器来测量分析它们运行过程中产生的超低频振动信号。 - The results of calculation and measures show that the low frequency of steam pipelines vibration fastens on 4 . 3 to 4 . 5 hz and 9 . 5hz , the low modes fastens on one - steps curl in vertical plane and its plane of each steam pipeline and one - rotation along with the line connecting the port circling main steam gate and the horizontal port of unit . the modes of # 3 and # 4 main steam conduits occupy the majority of low steps modes ( the five of the first eight phases ) , except for the first phase rotation vibration , the maximal distortion of other low steps vibration modes are all caused by the vibration of erect pipelines of cylinder
计算和实际测量结果表明：导汽管低频振动以4 . 3 - 4 . 5hz 、 9 . 5hz频率为主，管系的低阶模态以各导汽管在垂直导管平面和平面内的一阶弯曲、以及绕主汽门处端点与水平段汽机端连线的一阶扭转为主， # 3 、 # 4导汽管的振动模态占低阶模态的多数(前八阶模态中的五阶) ，除一阶扭转振型，导汽管的其它低阶振动模态中都是进汽缸立管的下端振动变形最大。 - The system introduces 991 ultra - low frequency pick up , and takes the vibration signal as the simulation input of practical measurement , which makes the s ystem can measure the ultra - low frequency vibration of long , large , tall and flexible structures and the low frequency vibration of engineering and site
系统引入991型超低频拾振器，将其拾取的振动信号作为本系统实际应用测试中模拟输入，使系统可对长大高柔结构的超低频振动和一般工程及场地的低频振动进行测量。